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Virtual Private Networks offer all the functionality of Wide
Area Networks but at a much lower cost and with much more
flexibility.
Advantages of a VPN:
Privacy:
Advances in Internet technology now make it possible to access
a low cost global network without compromising your privacy.
Enhanced Internet security is achieved by using either application-level
encryption or network layer encryption gateways and routers,
with a firewall for additional security.
Flexibility:
An Internet Protocol-based network offers a greater variety
of access methods than a private traditional WAN. Businesses
can choose from a variety of bandwidth capacity ranges Even
systems that do not completely comply with Internet standards
can take advantage of the Internet through protocol tunnelling
and application proxying.
Scalability:
Because Internet infrastructure is already in place throughout
many areas of the world, and because systems can automate
the process of configuring the VPN, Internet VPNs can be very
scalable compared to conventional WANs. This can make it much
simpler, faster and cheaper to add new sites to your network.
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